/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.hmilyylimh.cloud.rpcctx.config;

import org.apache.dubbo.common.extension.Activate;
import org.apache.dubbo.rpc.*;

import static org.apache.dubbo.common.constants.CommonConstants.CONSUMER;


@Activate(group = CONSUMER, order = Integer.MIN_VALUE + 1000)
public class ReqNoConsumerFilter implements Filter{

    public static final String TRACE_ID = "TRACE-ID";

    @Override
    public Result invoke(Invoker<?> invoker, Invocation invocation) throws RpcException {
        // 从上下文对象中取出跟踪序列号值
        String existsTraceId = RpcContext.getServerAttachment().getAttachment(TRACE_ID);

        // 然后将序列号值设置到请求对象中
        invocation.getObjectAttachments().put(TRACE_ID, existsTraceId);
        RpcContext.getClientAttachment().setObjectAttachment(TRACE_ID, existsTraceId);

        // 继续后面过滤器的调用
        return invoker.invoke(invocation);
    }
}
